期刊
ANALYTICAL CHEMISTRY
卷 87, 期 10, 页码 5232-5239出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.5b00147
关键词
-
资金
- Universidad Nacional del Litoral [11-11]
- CONICET (Consejo Nacional de Investigaciones Cientificas y Tecnicas) [PIP 455]
- ANPCyT (Agencia Nacional de Promocion Cientifica y Tecnologica) [PICT 2011-0005]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Fundacao de Amparo a Pesquisa do Estado de sao Paulo (FAPESP) [2012/03465-1, 2014/00986-6]
Several studies have shown high concentrations of polycyclic aromatic hydrocarbons (PAHs) in living spaces and soil adjacent to parking lots sealed with coal-tar-based products. Recent attention has been paid to the presence of seven PAHs in coal-tar samples, namely, benz[a]anthracene, benzo[k]-fluoranthene, benzo[b]fluoranthene, benzo[a]pyrene, chrysene, dibenz[a,h]anthracene, and indeno[1,2,3-cd]pyrene, and their association to significant increases in estimated excess lifetime cancer risk for nearby residents. Herein, we present an analytical approach to screen the presence of five highly toxic, high-molecular weight PAHs (HMW-PAHs) in coal-tar samples. These include dibenzo[a,l]pyrene, dibenzo[a,i]pyrene, dibenzo[a,e]pyrene, dibenzo[a,h]pyrene, and naphtho[2,3-a]pyrene. Their direct analysis, without chromatographic separation, in a reference coal-tar sample is made possible with the combination of excitation-emission matrices (EEMs) and parallel factor analysis (PARAFAC). EEMs are recorded at 4.2 K with the aid of a cryogenic fiber-optic probe and a commercial spectrofluorimeter. The simplicity of the experimental procedure and the excellent analytical figures of merit demonstrate the screening potential of this environmentally friendly approach for the routine analysis of numerous coal-tar samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据